CVE-2019-12155

Publication date 24 May 2019

Last updated 24 July 2024

Ubuntu priority

Low

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

interface_release_resource in hw/display/qxl.c in QEMU 3.1.x through 4.0.0 has a NULL pointer dereference.

From the Ubuntu Security Team

Sergej Schumilo, Cornelius Aschermann and Simon Wörner discovered that the qxl paravirtual graphics driver implementation in QEMU contained a null pointer dereference. A local attacker in a guest could use this to cause a denial of service.

Status

Package Ubuntu Release Status
qemu 21.04 hirsute
Fixed 1:4.2-1ubuntu1
20.10 groovy
Fixed 1:4.2-1ubuntu1
20.04 LTS focal
Fixed 1:4.2-1ubuntu1
19.10 eoan
Fixed 1:4.0+dfsg-0ubuntu9.1
19.04 disco
Fixed 1:3.1+dfsg-2ubuntu3.6
18.10 cosmic Ignored end of life
18.04 LTS bionic
Fixed 1:2.11+dfsg-1ubuntu7.20
16.04 LTS xenial
Fixed 1:2.5+dfsg-5ubuntu10.42
14.04 LTS trusty
qemu-kvm 21.04 hirsute Not in release
20.10 groovy Not in release
20.04 LTS focal Not in release
19.10 eoan Not in release
19.04 disco Not in release
18.10 cosmic Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
qemu

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

Other references